Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884934 | Junction bolt with adjustable clamping force | Euji Tsunoda | 1989-12-05 |
| 4878603 | Toner replenishing device | Masumi Ikesue | 1989-11-07 |
| 4869647 | Circular electromagnetic flow coupler | Goro Aoyama, Ryuhei Kawabe, Tadashi Goto | 1989-09-26 |
| 4844479 | Structure of a gland packing box | Takahisa Ueda, Hiroyuki Sasakura | 1989-07-04 |
| 4824329 | Method and apparatus for controlling liquid metal flow | Hajime Yamamoto, Tadashi Gotou, Masanori Yamakawa, Noboru Nakao | 1989-04-25 |